diff options
| author | Leon Romanovsky <leonro@nvidia.com> | 2023-01-31 14:31:57 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-02-02 06:04:09 +0100 |
| commit | 028fb19c6ba743ed308ba99ac325afa968795e0f (patch) | |
| tree | 0e9a952b6db48a9c87c98714c6aa6a2540bc5fd0 /net/bridge/br_switchdev.c | |
| parent | neighbor: fix proxy_delay usage when it is zero (diff) | |
| download | linux-028fb19c6ba743ed308ba99ac325afa968795e0f.tar.xz linux-028fb19c6ba743ed308ba99ac325afa968795e0f.zip | |
netlink: provide an ability to set default extack message
In netdev common pattern, extack pointer is forwarded to the drivers
to be filled with error message. However, the caller can easily
overwrite the filled message.
Instead of adding multiple "if (!extack->_msg)" checks before any
NL_SET_ERR_MSG() call, which appears after call to the driver, let's
add new macro to common code.
[1] https://lore.kernel.org/all/Y9Irgrgf3uxOjwUm@unreal
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/6993fac557a40a1973dfa0095107c3d03d40bec1.1675171790.git.leon@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/bridge/br_switchdev.c')
| -rw-r--r-- | net/bridge/br_switchdev.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/net/bridge/br_switchdev.c b/net/bridge/br_switchdev.c index 7eb6fd5bb917..de18e9c1d7a7 100644 --- a/net/bridge/br_switchdev.c +++ b/net/bridge/br_switchdev.c @@ -104,9 +104,8 @@ int br_switchdev_set_port_flag(struct net_bridge_port *p, return 0; if (err) { - if (extack && !extack->_msg) - NL_SET_ERR_MSG_MOD(extack, - "bridge flag offload is not supported"); + NL_SET_ERR_MSG_WEAK_MOD(extack, + "bridge flag offload is not supported"); return -EOPNOTSUPP; } @@ -115,9 +114,8 @@ int br_switchdev_set_port_flag(struct net_bridge_port *p, err = switchdev_port_attr_set(p->dev, &attr, extack); if (err) { - if (extack && !extack->_msg) - NL_SET_ERR_MSG_MOD(extack, - "error setting offload flag on port"); + NL_SET_ERR_MSG_WEAK_MOD(extack, + "error setting offload flag on port"); return err; } |